CN212365836U

CN212365836U - Separate arc subassembly and change over switch

Info

Publication number: CN212365836U
Application number: CN202021477471.9U
Authority: CN
Inventors: 孙刚; 徐赛金; 宋志文
Original assignee: Delixi Electric Co Ltd
Current assignee: Delixi Electric Co Ltd
Priority date: 2020-07-23
Filing date: 2020-07-23
Publication date: 2021-01-15
Anticipated expiration: 2030-07-23

Abstract

The utility model relates to the field of electrical technology, specifically disclose an arc subassembly and change over switch, wherein the arc subassembly includes first plate body, is equipped with first perpendicular muscle and second respectively on the both sides wall of first plate body and erects the muscle, first perpendicular muscle with the axis parallel arrangement that staggers of muscle is erected to the second. Through the first perpendicular muscle of both sides at first plate body and second perpendicular muscle, the arc insulating subassembly that has electrical insulation and thermal insulation function has been formed, not only can keep apart the electric arc between load and the load, also can insulate isolation to the screw of side power source and reserve side power source commonly used, avoid when disconnected heavy current, the problem of the inlet wire end short circuit that individual product can cause the power, and the axis of first perpendicular muscle and second perpendicular muscle staggers parallel arrangement, can be when installing each arc insulating subassembly more on change over switch, can be more discharge, avoid the interference between first perpendicular muscle and the second perpendicular muscle.

Description

Separate arc subassembly and change over switch

Technical Field

The utility model relates to an electrical technology field, concretely relates to separate arc subassembly and change over switch.

Background

The change-over switch is used as a switching device for switching over two or more power sources or loads, and is widely applied to various electrical equipment along with the continuous development of the society.

The existing transfer switch has the advantages of multiple contacts, multiple positions, small volume, reliable performance, convenience in operation, flexibility in installation and the like, wherein when the transfer switch is used, arc extinguishing treatment is usually carried out on static contacts connected with different loads, for example, an arc isolating plate is arranged between adjacent static contacts connected with power ends of different loads to realize the arc extinguishing effect, the design of the arc isolating plate is usually a straight plate type design, most of the arc isolating plate can only be used for the electric arc between the adjacent static contacts of the power ends, after the transfer switch is used for a period of time, particularly when large current is cut off, a single product can cause the short circuit of a wire inlet end of a power supply, namely, a screw of a power interface at a common side and a screw of a power interface at a standby side are short-circuited, so that the transfer switch is burnt.

SUMMERY OF THE UTILITY MODEL

Therefore, the to-be-solved technical problem of the utility model lies in overcoming prior art, after using a period, especially when dividing disconnected heavy current, the incoming line end short circuit of power can be caused to the individuality product, and often incline power source and reserve side power source's screw short circuit promptly to cause change over switch to burn out, cause the defect of loss, thereby provide one kind and can be to the insulating arc-insulating partition board subassembly of side power source and reserve side power source's screw commonly used and change over switch.

An arc barrier assembly comprising: the first plate body, be equipped with first perpendicular muscle and second on the both sides wall of first plate body respectively and erect the muscle, first perpendicular muscle with the axis staggered parallel arrangement of muscle is erected to the second.

Optionally, in the arc isolating assembly, the first plate body is provided with a first inserting channel and a second inserting channel, and the first inserting channel and the second inserting channel are arranged in parallel in a staggered manner;

the first vertical ribs and the second vertical ribs are respectively and correspondingly inserted into the first inserting channels and the second inserting channels.

Optionally, in the arc isolating assembly, the first vertical rib and the second vertical rib are integrally formed with the plate body.

Optionally, in the arc barrier assembly, the first vertical rib and the second vertical rib have the same width.

A transfer switch, comprising:

the switch body comprises at least two static contact modules which are arranged on one side of the switch body, and an inserting cavity is arranged between each pair of adjacent static contact modules;

the first plate body is inserted into the insertion cavity to separate two adjacent static contact modules;

any fixed contact module comprises a first fixed contact and a second fixed contact, and the first vertical rib and/or the second vertical rib are/is arranged between the first fixed contact and the second fixed contact.

Optionally, in the transfer switch, the switch body includes three fixed contact modules, an arc isolating assembly is correspondingly disposed between two adjacent fixed contact modules, and the two adjacent fixed contact modules are respectively a first arc isolating assembly, a second arc isolating assembly and a third arc isolating assembly, a first vertical rib wall surface of the second arc isolating assembly is attached to a second vertical rib wall surface of the first arc isolating assembly, and a second vertical rib wall surface of the second arc isolating assembly is attached to a second vertical rib wall surface of the third arc isolating assembly, so as to form an insulating space between the adjacent first fixed contact and the adjacent second fixed contact.

Optionally, in the above change-over switch, a width of the first vertical rib and/or the second vertical rib is less than or equal to a lateral vertical distance between the adjacent first plate bodies.

Optionally, in the foregoing transfer switch, the transfer switch further includes a wiring assembly, the wiring assembly includes a plurality of wiring pieces, and the wiring pieces are arranged in one-to-one correspondence with the static contact modules.

Optionally, in the transfer switch, the switch body further includes at least one load contact disposed on the other side of the switch body, and the load contact is electrically connected to a load.

Optionally, in the transfer switch, an arc isolating plate is arranged between any two adjacent load contacts, and the arc isolating plate is inserted between the two load contacts.

The utility model discloses technical scheme has following advantage:

1. the utility model provides a pair of separate arc subassembly, include: the first body, be equipped with first perpendicular muscle and second on the both sides wall of first plate body respectively and erect the muscle, first perpendicular muscle with the axis staggered parallel arrangement of muscle is erected to the second. Through the first perpendicular muscle of both sides at first plate body and second perpendicular muscle, the arc insulating subassembly that has electrical insulation and thermal insulation function has been formed, not only can keep apart the electric arc between load and the load, also can insulate isolation to the screw of side power source and reserve side power source commonly used, avoid when disconnected heavy current, the problem of the inlet wire end short circuit that individual product can cause the power, and the axis of first perpendicular muscle and second perpendicular muscle staggers parallel arrangement, can be when installing each arc insulating subassembly more on change over switch, can be more discharge, avoid the interference between first perpendicular muscle and the second perpendicular muscle.

2. The utility model provides a pair of change over switch, include: the switch body comprises at least two static contact modules which are arranged on one side of the switch body, and an inserting cavity is arranged between each pair of adjacent static contact modules; the first plate body is inserted into the insertion cavity to separate two adjacent static contact modules; any fixed contact module comprises a first fixed contact and a second fixed contact, and the first vertical rib and/or the second vertical rib are/is arranged between the first fixed contact and the second fixed contact. The change-over switch of this structure has adopted above-mentioned arc insulating subassembly, consequently, have above-mentioned arc insulating subassembly the advantage, and because this change-over switch is at the in-process that uses, because the screw that corresponds at side power source interface commonly used and reserve side power source interface insulates and keeps apart, power source side commonly used and reserve power source's electric clearance and creepage distance increase, even have heavy current to divide in the change-over switch like this, the arc insulating subassembly also can be effectual carries out effective insulation and isolation with the screw of power source side, play fine guard action, moreover, the steam generator is simple in structure reasonable, high durability and convenient installation is reliable, effectual change-over switch's use reliability that has increased, avoid change-over switch to take place to burn out, cause the loss.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic overall structural view of an arc barrier assembly provided in a first embodiment of the present invention;

fig. 2 is a schematic structural view of the first plate shown in fig. 1;

FIG. 3 is a side view of FIG. 1;

fig. 4 is a schematic view of an overall structure of a transfer switch according to a second embodiment of the present invention;

FIG. 5 is a schematic top view of the transfer switch of FIG. 4;

fig. 6 is an exploded view of the arc isolating member and the switch body in embodiment 2;

FIG. 7 is a schematic structural view of an arc barrier in example 2;

description of reference numerals:

1-a first plate body; 2-a first plug channel; 3-a second plug channel; 4-a first vertical rib; 5-second vertical ribs;

6-switch body; 61-a plug cavity;

7-a first stationary contact; 8-a second stationary contact; 9-a first arc-isolating component; 10-a second arc isolating component; 11-a third arc-isolating component; 12-a wiring piece; 14-an arc-isolating plate; 15-expanded rows.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Furthermore, the technical features mentioned in the different embodiments of the invention described below can be combined with each other as long as they do not conflict with each other.

Example 1

In the present embodiment, an arc isolating assembly is described, referring to fig. 1, 2 and 3, the arc isolating assembly includes a first plate 1, a first vertical rib 4, a second vertical rib 5, wherein the first vertical rib 4 and the second vertical rib 5 may be configured in the same structure, for example, the same width and the same thickness, so as to facilitate assembly, installation and adaptation, wherein a first inserting channel 2 and a second inserting channel 3 may be respectively disposed on two side walls of the first plate 1 along a vertical direction, wherein the first inserting channel 2 and the second inserting channel 3 are staggered and arranged in parallel at a half position of the first plate 1, then the first vertical rib 4 and the second vertical rib 5 are respectively inserted into the first inserting channel 2 and the second inserting channel 3, a set of arc isolating assembly is completed, by disposing the first inserting channel 2 and the second inserting channel 3 on two sides of the first plate 1, the first inserting channel 2 and the second inserting channel 3 are respectively inserted into the first vertical rib 4 and the second vertical rib 5, specifically, this first plate body 1, first perpendicular muscle 4 and second erect muscle 5 and all adopt insulating material to make to form the arc subassembly that separates that has electrical insulation and thermal insulation function, not only can keep apart the electric arc between load and the load, also can keep apart the screw of side power source and reserve side power source in common use, avoid when breaking disconnected heavy current, the problem of the inlet wire end short circuit that individual product can cause the power, certainly also can erect muscle 5 and first plate body 1 with first perpendicular muscle 4 and second and carry out the integrated into one piece setting, can guarantee use intensity.

Example 2

The present embodiment describes a change-over switch, which is different from embodiment 1 in that the change-over switch in the present embodiment includes a switch body 6, see fig. 4, fig. 5, and fig. 6, where the switch body 6 includes at least two static contact modules and at least one arc isolating component, and is disposed on one side of the switch body 6, and an insertion cavity 61 is disposed between each two adjacent static contact modules, where a first plate 1 of the arc isolating component is inserted into the insertion cavity 61 to isolate the two adjacent static contact modules, so as to implement insulation and isolation between the two static contact modules.

Specifically, after the first plate body 1 of the arc isolating component is inserted into the insertion cavity 61, the first vertical rib 4 and the second vertical rib 5 are arranged between the first fixed contact 7 and the second fixed contact 8, and after the first fixed contact 7 and the second fixed contact 8 are respectively connected with a common power supply and a standby power supply, the first fixed contact 7 and the second fixed contact 8 are isolated by the first vertical rib 4 and the second vertical rib 5, so that the electrical gap and creepage distance between the common power supply side and the standby power supply are increased, even if a large current exists in the transfer switch, the first vertical rib 4 and the second vertical rib 5 can effectively insulate and isolate screws on the power supply side, a good protection effect is achieved, the structure is simple and reasonable, the installation is convenient and reliable, and the use reliability of the transfer switch is effectively increased, avoid the change-over switch to burn out, cause the loss.

In this embodiment, taking the switch body 6 as an example of three pairs of fixed contacts, A, B, C are provided for each fixed contact module, wherein A, B, C three fixed contact modules are arranged on the same side of the switch body 6, each fixed contact module includes a first fixed contact 7 and a second fixed contact 8 for connecting a common power supply and a standby power supply, during installation, an arc isolating component is provided between A, B, C three fixed contact modules, and corresponds to a first arc isolating component 9, a second arc isolating component 10 and a third arc isolating component 11, wherein a wall surface of a first vertical rib 4 of the second arc isolating component 10 is attached to a wall surface of a second vertical rib 5 of the first arc isolating component 9, a wall surface of a second vertical rib 5 of the second arc isolating component 10 is attached to a wall surface of a second vertical rib 5 of the third arc isolating component 11, so as to form an insulating space between the first fixed contact 7 and the second fixed contact 8 which are arranged oppositely, the effect of insulating the first static contact 7 and the second static contact 8 after being respectively connected with a common power supply and a standby power supply is realized;

specifically, the width of the first vertical rib 4 and/or the second vertical rib 5 may be set to be less than or equal to the side vertical distance between the adjacent first plate bodies 1, so that the two adjacent first plate bodies 1 can be completely separated.

The transfer switch in this embodiment further includes a wiring assembly, the wiring assembly includes a plurality of wiring members 12, the wiring members 12 are disposed in one-to-one correspondence with the first stationary contact and the second stationary contact in each stationary contact module, for example, the wiring members 12 are disposed on the first stationary contact 7 and the second stationary contact 8, respectively, the wiring members 12 may be wiring lugs, the wiring members 12 are screwed onto the first stationary contact 7 and the second stationary contact 8 by screws, and then the wiring members are electrically connected to the common power supply and the standby power supply.

In this embodiment, the other side of the switch body 6 is further provided with load contacts, and the load contacts are electrically connected to a load through the load contacts, where the number of the load contacts may be one, two, and three, as shown in fig. 4, taking three load contacts as an example, the load contacts correspond to A, B, C three static contact modules, respectively, where A, B, C three pairs of static contacts are connected to a common power source and a standby power source, and the load contacts are connected to a load, and the switching of the power sources is realized by connecting the first static contact 7 and the second static contact 8 of the A, B, C three static contact modules to the common power source and the load power source respectively and performing the switching of the power sources, where, as shown in fig. 6 and 7, an arc isolating plate 14 may be further disposed between any two adjacent load contacts, and the arc isolating plate 14 is inserted between the two load contacts, the short circuit of the load contact between different loads is avoided, and the use stability of the change-over switch is ensured.

In this embodiment, the transfer switch further includes an extension bar 15, the extension bar 15 is disposed on one side of the switch body 6 and electrically connected to the switch body 6, wherein the structure of the extension bar is the prior art and is not described herein again.

It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications can be made without departing from the scope of the invention.

Claims

1. An arc barrier assembly, comprising:

the novel steel plate is characterized by comprising a first plate body (1), wherein a first vertical rib (4) and a second vertical rib (5) are arranged on two side walls of the first plate body respectively, and the first vertical rib (4) and the second vertical rib (5) are arranged in parallel in a staggered mode.

2. The arc isolating assembly according to claim 1, wherein the first plate body (1) is provided with a first plug-in channel (2) and a second plug-in channel (3), and the first plug-in channel (2) and the second plug-in channel (3) are arranged in parallel in a staggered manner;

the first vertical ribs (4) and the second vertical ribs (5) are respectively and correspondingly inserted into the first inserting channels (2) and the second inserting channels (3).

3. The arc-insulating assembly according to claim 1 or 2, characterized in that the first vertical rib (4) and the second vertical rib (5) are integrally formed with the plate body (1).

4. The arc flash assembly of claim 1, wherein the first vertical rib (4) and the second vertical rib (5) have the same width.

5. A transfer switch, comprising:

the switch comprises a switch body (6) and a plurality of fixed contact modules, wherein the switch body (6) comprises at least two fixed contact modules which are arranged on one side of the switch body (6), and an inserting cavity (61) is arranged between each pair of adjacent fixed contact modules;

at least one arc isolating component according to claim 1 or 2, wherein the first plate (1) is inserted into the insertion cavity (61) to isolate two adjacent static contact modules;

any static contact module comprises a first static contact (7) and a second static contact (8), and the first vertical rib (4) and/or the second vertical rib (5) are/is arranged between the first static contact (7) and the second static contact (8).

6. The change-over switch according to claim 5, wherein the switch body (6) comprises three fixed contact modules, an arc isolating component is correspondingly arranged between two adjacent fixed contact modules, and the arc isolating component is a first arc isolating component (9), a second arc isolating component (10) and a third arc isolating component (11), a wall surface of a first vertical rib (4) of the second arc isolating component (10) is attached to a wall surface of a second vertical rib (5) of the first arc isolating component (9), and a wall surface of a second vertical rib (5) of the second arc isolating component (10) is attached to a wall surface of a second vertical rib (5) of the third arc isolating component (11), so as to form an insulating space between the adjacent first fixed contact (7) and the adjacent second fixed contact (8).

7. The diverter switch according to claim 5, characterized in that the width of the first vertical rib (4) and/or the second vertical rib (5) is smaller than or equal to the lateral vertical distance between adjacent first plates (1).

8. The transfer switch of claim 5, further comprising a wiring assembly, wherein the wiring assembly comprises a plurality of wiring pieces (12), and the wiring pieces (12) are arranged in one-to-one correspondence with the fixed contact modules.

9. The transfer switch of claim 6, wherein the switch body (6) further comprises at least one load contact disposed on the other side of the switch body (6), the load contact being electrically connected to a load.

10. A diverter switch according to claim 9, characterized in that an arc barrier (14) is provided between any two adjacent load contacts, said arc barrier (14) being interposed between said two load contacts.